--- service: h.root-servers.net metric: traffic-volume start-period: '2015-06-02T00:00:00Z' end-period: '2015-06-02T23:59:59Z' dns-udp-queries-received-ipv4: 842231190 dns-udp-queries-received-ipv6: 73758375 dns-tcp-queries-received-ipv4: 122217 dns-tcp-queries-received-ipv6: 44863 dns-udp-responses-sent-ipv4: 768748205 dns-udp-responses-sent-ipv6: 67476334 dns-tcp-responses-sent-ipv4: 39546 dns-tcp-responses-sent-ipv6: 30707